How to use

clear

method

in

org.apache.ignite.internal.util.GridLongList

ptrs.clear();

/** {@inheritDoc} */
@Override public boolean next() {
  if (prevKey == null) { // First call.
    if (!in.next())
      return false;
    prevKey = in.key();
    assert prevKey != null;
    in.keyReader.resetReusedObject(null); // We need 2 instances of key object for comparison.
    vals.add(value(in.metaPtr));
  }
  else {
    if (in.metaPtr == 0) // We reached the end of the input.
      return false;
    vals.clear();
    vals.add(value(in.metaPtr));
    in.keyReader.resetReusedObject(prevKey); // Switch key instances.
    prevKey = nextKey;
  }
  while (in.next()) { // Fill with head value pointers with equal keys.
    if (grpCmp.compare(prevKey, nextKey = in.key()) == 0)
      vals.add(value(in.metaPtr));
    else
      break;
  }
  assert !vals.isEmpty();
  return true;
}

assert key != null;
stack.clear();

ptrs.clear();